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[tests] Verify ability to perform in-place encryption and decryption

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TLS relies upon the ability of ciphers to perform in-place decryption,
in order to avoid allocating additional I/O buffers for received data.

Add verification of in-place encryption and decryption to the cipher
self-tests.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2022-11-09 16:50:01 +00:00
parent 4acded7e57
commit f5c829b6f8
1 changed files with 6 additions and 4 deletions
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10
src/tests/cipher_test.c
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@@ -91,8 +91,9 @@ void cipher_encrypt_okx ( struct cipher_test *test, const char *file,
test->additional_len ); test->additional_len );
} }
/* Perform encryption */ /* Perform in-place encryption */
cipher_encrypt ( cipher, ctx, test->plaintext, ciphertext, len ); memcpy ( ciphertext, test->plaintext, len );
cipher_encrypt ( cipher, ctx, ciphertext, ciphertext, len );
/* Compare against expected ciphertext */ /* Compare against expected ciphertext */
okx ( memcmp ( ciphertext, test->ciphertext, len ) == 0, file, line ); okx ( memcmp ( ciphertext, test->ciphertext, len ) == 0, file, line );
@@ -149,8 +150,9 @@ void cipher_decrypt_okx ( struct cipher_test *test, const char *file,
test->additional_len ); test->additional_len );
} }
/* Perform decryption */ /* Perform in-place decryption */
cipher_decrypt ( cipher, ctx, test->ciphertext, plaintext, len ); memcpy ( plaintext, test->ciphertext, len );
cipher_decrypt ( cipher, ctx, plaintext, plaintext, len );
/* Compare against expected plaintext */ /* Compare against expected plaintext */
okx ( memcmp ( plaintext, test->plaintext, len ) == 0, file, line ); okx ( memcmp ( plaintext, test->plaintext, len ) == 0, file, line );